论文标题
在没有自旋轨道耦合的情况下，dzyaloshinskii-moriya相互作用
Dzyaloshinskii-Moriya interaction in absence of spin-orbit coupling
论文作者
论文摘要
与常规假设相反，我们表明dzyaloshinskii-moriya相互作用可以是非偏见的起源，尤其是在具有非共线磁性构型的材料中，在非旋转磁性构型的材料中，非相关主义的贡献可以主导自旋轨道效应。 Mn $ _ {3} $ sn的弱抗铁磁相用于说明这些发现。使用电子结构理论作为概念平台，所有相关的交换相互作用均为一般的非校准磁态得出。证明非共线性影响了所有三种交换相互作用，并且可以将与电子和自旋密度和电流连接的物理不同机制用作分析和理解固态的磁相互作用的一般方法。
In contrast to conventional assumptions, we show that the Dzyaloshinskii-Moriya interaction can be of non-relativistic origin, in particular in materials with a non-collinear magnetic configuration, where non-relativistic contributions can dominate over spin-orbit effects. The weak antiferromagnetic phase of Mn$_{3}$Sn is used to illustrate these findings. Using electronic structure theory as a conceptual platform, all relevant exchange interactions are derived for a general, non-collinear magnetic state. It is demonstrated that non-collinearity influences all three types of exchange interaction and that physically distinct mechanisms, which connect to electron- and spin-density and currents, may be used as a general way to analyze and understand magnetic interactions of the solid state.
